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Magnetic flux pattern and magnetization curve of Exterior Rotor Permanent Magnet Brushless DC (ERPMBLDC) Motor are obtained using an advanced numerical method called Finite Element Method. This method better suits to deal with the complicated internal structure of the machine and non linear magnetic characteristics. Finite Element method Magnetics (FEMM) software Version 4.2 is used to simulate two...
AA6061 aluminium alloy (Al−Mg−Si alloy) has gathered wide acceptance in the fabrication of food processing equipment, chemical containers, passenger cars, road tankers, and railway transport systems. The preferred process for welding these aluminium alloys is frequently Gas Tungsten Arc (GTA) welding due to its comparatively easy applicability and lower cost. In the case of single pass GTA welding...
A practical finite element scheme is presented for the solution of open boundary problems. The region is considered as an open boundary annexed with a small closed boundary. The open boundary is modelled by the ballooning procedure and the results of the open boundary become the boundary conditions of the inner closed region, which is subsequently modelled by the conventional finite element method,...
The tropical coastline environment has deterious effect on the properties and ageing pattern of dielectric materials. A study has been carried out to establish the correlation factor between humidity and internal discharges characteristics of epoxy resin materials. From the tests conducted and by using IR technique, the ingress of moisture into the cast epoxy resin has been established. A sharp increase...
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